Java练习题10

public class CPU {int speed;void setSpeed(int m){speed=m;}int getSpeed(){return speed;}}public class HardDisk {int amount;void setAmount(int m){amount=m;}int getAmount(){return amount;}}public class PC {CPU cpu;HardDisk HD;void setCPU(CPU c){cpu=c;}void setHardDisk(HardDisk h){HD=h;}void show(){System.out.println("cpu的速度为"+cpu.speed+"，硬盘的容量为"+HD.amount);}}public class Test10 {public static void main(String[] args) {CPU cpu=new CPU();cpu.setSpeed(2200);HardDisk disk=new HardDisk();disk.setAmount(200);PC pc=new PC();pc.setCPU(cpu);pc.setHardDisk(disk);pc.show();}}